isomorphic-validation

An isomorphic data and form validation javascript library which runs the same code both client and server side and allows for reusing validation logic for the same fields on different forms.

Documentation

isomorphic-validation-docs

Usage examples:

• Sign-up sign-in forms example

Developing ...

This is a brief outline of the whole library's API:

Validation instance methods

    Validation(obj, propName, initVal)
        .started(cb)
        .valid(cb)
        .invalid(cb)
        .changed(cb)
        .validated(cb)
        .error(cb)
        .constraint(Predicate()|Function.prototype, { next, debounce, keepValid, optional, ...anyData })
        .bind(obj, propName, initVal)
        .dataMapper((req, form) => {}) 
        .validate(obj)

Validation instance properties

    Validation().constraints
    Validation().validations
    Validation().isValid
    Validation().server // isomorphic API
    Validation().client // isomorphic API
    Validation().isomorphic // isomorphic API

Validation static methods

    Validation.group([Validation(), Validation()])
    Validation.glue([Validation(), Validation()])
    Validation.clone(Validation())
    Validation.profile(selector, [fieldNames], [Validation(), Validation()])

Predicate instance methods

    Predicate(() => true|false|Promise{true|false})
        .started(cb)
        .valid(cb)
        .invalid(cb)
        .changed(cb)
        .validated(cb)
        .restored(cb)
        .error(cb)

Predicate instance properties

    Predicate().server // isomorphic API
    Predicate().client // isomorphic API
    Predicate().isomorphic // isomorphic API